Home / 2,987,040,020.10-4,480,560,030.15-806,002,656.90

Finding the Fourth Proportional to 2,987,040,020.10, 4,480,560,030.15 and 806,002,656.90

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Solution

The fourth proportional to 2,987,040,020.10, 4,480,560,030.15 and 806,002,656.90 is: 1,209,003,985.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,040,020.10 : 4,480,560,030.15 = 806,002,656.90 : x
  2. Step 2: Convert to fraction form
    2,987,040,020.10/4,480,560,030.15 = 806,002,656.90/x
  3. Step 3: Cross multiply
    2,987,040,020.10x = 4,480,560,030.15 × 806,002,656.90
  4. Step 4: Simplify right side
    2,987,040,020.10x = 3,611,343,288,700,843,520
  5. Step 5: Solve for x
    x = 3,611,343,288,700,843,520/2,987,040,020.10
  6. Step 6: Final answer
    x = 1,209,003,985.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.